:root {
  --bg-dark: #0f1115;
  --bg-card: #171b22;
  --bg-card-hover: #1e232c;
  --border-color: #2b3240;
  --accent-olive: #8db600;
  --accent-light: #a4c639;
  --accent-glow: rgba(141, 182, 0, 0.25);
  --text-main: #f0f3f6;
  --text-muted: #8b949e;
  --text-dim: #545d68;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  padding-bottom: 60px;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background-color: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 24px;
}

.logo-title {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
  background-color: #232936;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.badge-rust {
  background-color: rgba(222, 91, 56, 0.15);
  color: #de5b38;
  border-color: rgba(222, 91, 56, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--accent-light);
}

.github-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: #232936;
  color: #fff !important;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.github-btn:hover {
  background-color: #2e3646;
  border-color: var(--accent-olive);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  padding: 60px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 40%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.cta-primary {
  background-color: var(--accent-olive);
  color: #000;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color 0.2s, transform 0.1s;
}

.cta-primary:hover {
  background-color: var(--accent-light);
  transform: translateY(-1px);
}

.cta-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.cta-secondary:hover {
  border-color: var(--accent-olive);
  background-color: var(--bg-card-hover);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-light);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* Studio Sections */
.studio-section {
  margin-top: 60px;
}

.section-header {
  margin-bottom: 24px;
}

.section-header h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 15px;
}

/* Studio Grid */
.studio-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .studio-grid {
    grid-template-columns: 1fr;
  }
}

.viewport-card, .controls-card, .graph-flow-card, .timeline-container, .json-inspector-card, .code-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background-color: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  font-size: 14px;
}

.canvas-meta {
  display: flex;
  gap: 8px;
}

#fps-counter, #res-badge {
  font-size: 11px;
  font-family: var(--font-mono);
  background-color: #232936;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  color: var(--accent-light);
}

.canvas-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #050608;
  padding: 16px;
}

#render-canvas {
  width: 100%;
  max-width: 640px;
  height: auto;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  background: #000;
}

.transport-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-top: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.2);
}

.btn {
  background-color: #232936;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn:hover:not(:disabled) {
  background-color: #2e3646;
  border-color: var(--accent-olive);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-secondary {
  background-color: #1a202c;
  font-size: 12px;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.slider {
  flex-grow: 1;
  accent-color: var(--accent-olive);
  cursor: pointer;
}

.timecode {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-light);
  min-width: 160px;
  text-align: right;
}

/* Node Controls */
.node-controls-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-group label {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.control-group label span {
  color: var(--accent-light);
  font-family: var(--font-mono);
}

.select-input {
  background-color: #0f1115;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 13px;
  outline: none;
}

/* Graph Flow */
.graph-flow-card {
  padding-bottom: 20px;
}

.status-indicator {
  font-size: 12px;
  color: var(--accent-light);
  font-family: var(--font-mono);
}

.nodes-flow-container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  overflow-x: auto;
}

.node-box {
  background-color: #10141b;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  min-width: 170px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all 0.2s;
}

.node-box.active-node {
  border-color: var(--accent-olive);
  box-shadow: 0 0 16px var(--accent-glow);
}

.node-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

.node-subtitle {
  font-size: 11px;
  color: var(--text-muted);
}

.node-pins {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  margin-top: 4px;
}

.pin-in {
  color: #58a6ff;
}

.pin-out {
  color: var(--accent-light);
}

.flow-arrow {
  color: var(--accent-olive);
  font-size: 18px;
}

/* Timeline */
.timeline-container {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.timeline-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.timeline-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tracks-wrapper {
  background-color: #0b0d11;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  overflow: hidden;
}

.track-header {
  width: 120px;
  padding: 16px 12px;
  background-color: #141820;
  border-right: 1px solid var(--border-color);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
}

.track-timeline {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-grow: 1;
  padding: 10px;
  min-height: 60px;
  overflow-x: auto;
}

.timeline-block {
  height: 40px;
  border-radius: 4px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  color: #000;
  position: relative;
  transition: all 0.2s;
  user-select: none;
}

.block-clip {
  background: linear-gradient(135deg, #8db600, #a4c639);
}

.block-gap {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px dashed var(--border-color);
  color: var(--text-dim);
}

.block-audio {
  background: linear-gradient(135deg, #388bfd, #58a6ff);
}

.block-len {
  font-family: var(--font-mono);
  font-size: 10px;
  opacity: 0.8;
}

.history-log {
  margin-top: 12px;
  background-color: #0d1017;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  max-height: 120px;
  overflow-y: auto;
}

.log-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.log-item {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  padding: 2px 0;
}

.log-item.active {
  color: var(--accent-light);
}

/* JSON Inspector & Code */
.json-inspector-card pre, .code-card pre {
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #c9d1d9;
  line-height: 1.5;
  background-color: #0b0d12;
}

/* Footer */
.footer {
  text-align: center;
  margin-top: 80px;
  color: var(--text-muted);
  font-size: 13px;
}

.footer a {
  color: var(--accent-light);
  text-decoration: none;
}